O.S. Engines

Valve Assembly Intake: FS-91 Surpass

M2004SC 85mm Manifold

Mufler Body F6020: FS155A-P

Valve In Ex: 90-320

Screw Set (12): FS-120 Surpass

Cylinder Liner: 50SX-H

Rocker Cover, Black: FSa-56II

Crankshaft: 30VG

Thrust Washer: BGX-3500

M2003SC 70mm Manifold, Top Speed, On-Road

Piston Pin: 40 46VFR

Rotor Guide Screw: F90-300

Cylinder Brass Head Gasket: 75AX

Piston Pin: 50SX-H

Exhaust Header Pipe Assembly F-5050: FS-95V

Muffler Extension: #762

Inner Head: O.S. Speed R2104

Motor Mount: FT120, FT160

Carburetor Retainer: 12TZ Spec II

Mixture Control Valve #70C: FS120 Surpass II

Carburetor Dust Covers: #12FB, 12XZ Speed

O.S. Cover Plate Speed: T1203

Intake Valve: 200 Surpass

Metering Needle 12F2: 12XZ Speed Spec